HRESULT 0xC03A000B (ERROR_VHD_INVALID_BLOCK

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Description:

The system does not support this version of the virtual hard disk. The block size is invalid.

Could be also:
Constant	Type	OS
STATUS_VHD_INVALID_BLOCK_SIZE	NTSTATUS	Windows

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ERROR_VHD_BLOCK_ALLOCATION_TABLE_CORRUPT	ERROR_VHD_BITMAP_MISMATCH

ERROR_VHD_INVALID_BLOCK_SIZE

ERROR_VHD_INVALID_BLOCK_SIZE indicates that the block-size value recorded in the virtual disk is invalid for the format or unsupported by the current virtual disk stack.

What to verify

Inspect the virtual disk on the Hyper-V host that created it and record its type, virtual size, and format.
Check whether the file was damaged or produced by a third-party converter that wrote incompatible metadata.
Create new disks with supported block and sector settings instead of editing the failed disk metadata.

Microsoft: New-VHD

Microsoft: Get-VHD

Microsoft: VHDX file format specification

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